PM55 Automatic Precision Pocket Meter Users Manual • • • • Mode d’emploi Bedienungshandbuch Manual d’Uso Manual de uso PN 2153049 August 2004 2004 Meterman Test Tools. All rights reserved.
4 1 2 SEL ECT 3 Press for 2 seconds to turn meter on. A LCD display B Rotary switch to select functions and to turn the power on or off C SELECT-button to select alternate functions and turn the power off and on.
PM55 Pocket Meter Introduction ....................................................................................................2 Safety Information...........................................................................................2 Symbols Used in this Manual........................................................................3 Turning the Meter On and Off ..........................................................................3 Making Measurements ..........................................
Introduction This unique meter has a full complement of features in a package only 3/8 inch thick, weighing less than 3 oz. for the utmost in shirt-pocket portability. The PM55 is fully autoranging and has an oversized, easy-toread digital display. With an AutoTect™ feature that enables the meter to detect and display measurements of AC Volts, DC Volts and Resistance. The PM55 offers VolTect™, a built-in non-contact voltage detection of AC voltage.
• Exercise extreme caution when: measuring voltage >20 V // current >10 mA // AC power line with inductive loads // AC power line during electrical storms // current, when the fuse blows in a circuit with open circuit voltage > 600 V // servicing CRT equipment. • Remove test leads from circuit before opening the case. • Always measure current in series with the load – NEVER ACROSS a voltage source.
Making Measurements All measurements described in this manual use the Red test lead for positive (+) polarity and Black test lead for Ground reference (-) unless otherwise specified AutoTect mode is the default function in Auto V.Ω position.
AutoTect Mode This AutoTect feature automatically selects measurement function of V dc, V ac, or resistance based on the input via the test leads. ● With no input, the meter displays Auto when it is ready. ● With no voltage signal but a resistance below 6 MΩ is present, the meter displays the resistance value. ● When a signal above the threshold of 1.2 V dc or 1.5 V ac up to the rated 600 V is present, the meter displays the appropriate voltage value in dc or ac, whichever larger in peak magnitude.
Electric Field EF-Detection, VolTect With Auto displayed on the LCD, press the SELECT button momentarily 2 times to select the EF-Detection feature. The meter displays EF when it is ready. Signal strength is indicated as a series of bargraph segments on the display and variable beep tones. See the VolTect specifications later in this manual for a complete description of the bar graph indicators.
Note For Maximum sensitivity, hold the meter away from the VolTect corner.
Voltage With Auto on the LCD, press the SELECT button 3 times to select V ac function. The meter displays LoZBV when it is ready.This function is auto-ranging. With Auto on the LCD, press the SELECT button 4 times to select V dc. The meter displays LoZ V when it is ready. This function is auto-ranging. Resistance With Auto on the LCD, press the SELECT button 5 times to select resistance function, The meter displays MΩ when it is ready. This function is auto-ranging.
Diode Turn the rotary selector to the GR /600 Ω position. Diode test is the default function. The reading shows the approximate voltage drop across the test leads. Normal forward voltage drop (forward biased) for a good silicon diode is between 0.400 V to 0.900 V. A reading higher than that indicates a leaky diode (defective). A zero reading indicates a shorted diode (defective), and the meter will give a long beep as continuity warning. OL indicates an open diode (defective).
Troubleshooting If the instrument fails to operate, check battery, leads, and replace battery as necessary. Double-check operating procedure as described earlier in this manual. If the display locks up, press the SELECT button for approximately 6 seconds to reset the microprocessor.
Limited Warranty and Limitation of Liability Your Meterman product will be free from defects in material and workmanship for 1 year from the date of purchase. This warranty does not cover fuses, disposable batteries or damage from accident, neglect, misuse, alteration, contamination, or abnormal conditions of operation or handling. Resellers are not authorized to extend any other warranty on Meterman’s behalf.
In-Warranty Repairs and Replacement – All Countries Please read the warranty statement that follows, and check your battery before requesting repair. During the warranty period any defective test tool can be returned to your Meterman Test Tools distributor for an exchange for the same or like product. Please check the “Where to Buy” section on www.metermantesttools.com for a list of distributors near you.
Specifications General Specifications Display and Update Rate: 3-5/6 digits 6000 counts; Updates 5 per second nominal Operating Temperature: 0 °C - 40 °C Relative Humidity: Maximum 80% R.H. up to 31 °C, decreasing linearly to 50% R.H. at 40 °C Altitude: Operating below 2000 m Storage Temperature: -20 °C ~ 60 °C, < 80% R.H. (with battery removed) Temperature Coefficient: Nominal 0.
E.M.C. Meets EN61326 (1997, 1998/A1), EN61000- 4-2 (1995), and EN61000-4-3 (1996). This product complies with requirements of the following European Community Directives: 89/ 336/ EEC (Electromagnetic Compatibility) and 73/ 23/ EEC (Low Voltage) as amended by 93/ 68/ EEC (CE Marking). However, electrical noise or intense electromagnetic fields in the vicinity of the equipment may disturb the measurement circuit.
AC Voltage Range Accuracy 50 Hz – 60 Hz ±(1.5%+5 dgt) 6.000 V, 60.00 V, 450.0 V, 600 V CMRR: > 60 dB @ dc to 60 Hz, Rs=1 kΩ Input Impedance: AutoTect Lo-Z V ac: 160 kΩ, 160 pF nominal Hi-Z ACV: 5MΩ, 90pF nominal ACV AutoTect Threshold: > 1.5 V ac (50 Hz/60 Hz) nominal Capacitance Range1 Accuracy2 100.0nF, 1000nF, 10.00µF, 3) 100.0µF ±(3.
Resistance Range1 Accuracy2 600.0 Ω ±(2.0%+6 dgt) 6.000 kΩ ±(1.2%+6 dgt) 60.00 KΩ, 600.0 KΩ ±(1.0%+4 dgt) 6.000 MΩ ±(2.0%+4 dgt) Open Circuit Voltage: 0.4VDC typical 1)AutoTect is for 6.000kΩ ~ 6.000MΩ ranges; 2)Add 40 dgt to specified accuracy while reading is below 20% of range Frequency Range1 Accuracy 2 10.00 Hz -30.00 kHz ±(0.5%+4 dgt) 10.00 Hz -999.
DC µA Current Range1 Accuracy Burden Voltage 400.0 µA ±(1.5%+3 dgt) 6 mV/µA 2000 µA ±(1.2%+3 dgt) 6 mV/µA AC µA Current Range1 Accuracy Burden Voltage 400.0 µA ±(2.0%+3 dgt) 6 mV/µA 2000 µA ±(1.
Audible Continuity Tester (600 Ω Range) Open Circuit Voltage: 0.
